Electronic drum detection device and electronic drum detection method

Abstract

Provided are an electronic drum detection device and an electronic drum detection method. The electronic drum detection device comprises a shell, a signal amplification circuit, a sampling detection circuit, a band-pass filtering amplifier, a waveshaping circuit, an MCU, a drive circuit, a power supply, a detection light emission device, a detection light receiving device and a detection signal output device, wherein the signal amplification circuit, the sampling detection circuit, the band-pass filtering amplifier, the waveshaping circuit, the MCU, the drive circuit and the power supply are arranged inside the shell; the detection light emission device and the detection light receiving device are arranged on the shell; the detection signal output device is arranged on or in the shell; the power supply is respectively connected with and provides electricity for the signal amplification circuit, the sampling detection circuit, the band-pass filtering amplifier, the waveshaping circuit, the MCU, the drive circuit, the detection light emission device, the detection light receiving device and the detection signal output device; envelope signals are taken out by the signal amplification circuit from amplitude modulation waves, and the included angle of an optical path of the detection light emission and receiving device ranges from 0 degree to 50 degrees; the detection light receiving device, the signal amplification circuit, the sampling detection circuit, the band-pass filtering amplifier, the waveshaping circuit, the MCU, the drive circuit and the detection light emission device are connected in sequence; the MCU is connected with the sampling detection circuit and the detection signal output device. The method includes the steps of receiving detection light to a vibrated drumhead, receiving detection light reflected by the drumhead, carrying out amplification, detection, filtering and shaping processing on detection light, detecting shaped signal frequency and outputting vibration information. According to the device and method, false detection can be avoided, detection is not interfered by ambient vibration, and detection operation is accurate, convenient and fast.

Description

technical field [0001] The invention relates to a detection device for the vibration of an electronic drum, and also relates to a method for detecting the vibration of the electronic drum using the device. Background technique [0002] The traditional electronic drum detection method is carried out by using a traditional electronic drum detection device. The traditional electronic drum detection device includes a piezoelectric buzzer and a detection circuit connected to the piezoelectric buzzer. During detection, the piezoelectric buzzer contacts the drum skin of the electronic drum. When the electronic drum is struck, the piezoelectric buzzer passes through The vibrating drumhead picks up its vibration audio signal, and the vibration audio signal is amplified by the detection circuit, thereby detecting the amplitude of the drumhead. [0003] There are following defects in the above-mentioned traditional electronic drum detection device and electronic drum detection method:...

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